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ST7LITE49K2 Datasheet(PDF) 206 Page - STMicroelectronics

No. de pieza ST7LITE49K2
Descripción Electrónicos  Communication interfaces
PDF  245 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE49K2 Datasheet(HTML) 206 Page - STMicroelectronics

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Electrical characteristics
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Figure 95.
SPI slave timing diagram with CPHA=0
1.
Measurement points are done at CMOS levels: 0.3xVDD and 0.7xVDD
2.
When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave
mode) has its alternate function capability released. In this case, the pin status depends on the I/O port
configuration.
Figure 96.
SPI slave timing diagram with CPHA=1
1.
Measurement points are done at CMOS levels: 0.3xVDD and 0.7xVDD
2.
When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave
mode) has its alternate function capability released. In this case, the pin status depends on the I/O port
configuration.
SS INPUT
CPHA=0
MOSI INPUT
MISO OUTPUT
CPHA=0
tc(SCK)
tw(SCKH)
tw(SCKL)
tr(SCK)
tf(SCK)
tv(SO)
ta(SO)
tsu(SI)
th(SI)
MSB OUT
MSB IN
BIT6 OUT
LSB IN
LSB OUT
see note 2
CPOL=0
CPOL=1
tsu(SS)
th(SS)
tdis(SO)
th(SO)
see
note 2
BIT1 IN
SS INPUT
CPHA=1
MOSI INPUT
MISO OUTPUT
CPHA=1
tw(SCKH)
tw(SCKL)
tr(SCK)
tf(SCK)
ta(SO)
tsu(SI)
th(SI)
MSB OUT
BIT6 OUT
LSB OUT
see
CPOL=0
CPOL=1
tsu(SS)
th(SS)
tdis(SO)
th(SO)
see
note 2
note 2
tc(SCK)
HZ
tv(SO)
MSB IN
LSB IN
BIT1 IN



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